Fire early detection warning alarm system and method

Abstract

The present invention relates to a fire very early detection warning alarm system and method. Subway tunnel fires are extremely harmful to human life and property, and it is necessary to propose relevant methods for very early fire detection of subway tunnel fires. Each detector in the system is connected to a group of alarm monitoring modules, and all alarm monitoring modules are connected to an alarm controller; in the detector, the infrared light sensor and the ultraviolet light sensor are connected to an industrial-grade computing chip, and the high-definition camera is connected to an image sensor and then to an industrial-grade computing chip; the industrial-grade computing chip is connected to a signal comparison unit, and the signal comparison unit is connected to a signal relay, and the signal relay is connected to a terminal of a wiring board and outputs a signal. The present invention can effectively avoid false fire alarms, greatly improve the accuracy of the early warning alarm of the fire detector, can transmit real-time video images on the scene, and also greatly facilitate the investigation of the cause of the later fire accident.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarms, and in particular to a fire very early detection and early warning alarm system and method. Background Art

[0002] Subway stations and sections are basically located in underground buildings. Subway tunnels are relatively closed and narrow spaces. After a fire occurs, they have the following characteristics: 1. Heat accumulates and cannot be dispersed. The temperature rises quickly due to heat radiation. A large amount of high-temperature smoke quickly fills the tunnel, and the highest temperature can reach about 1200°C, causing serious damage to the tunnel structure and trackside electromechanical equipment. It is difficult to quickly resume train operations in a short period of time after the disaster; 2. Ventilation conditions are limited, and it is difficult to quickly replenish fresh air from the outside, resulting in a sharp drop in the oxygen content in the tunnel. For passenger trains that lose power and stay in the section, passengers are in danger of life due to lack of oxygen; 3. Smoke and heat exhaust conditions are limited, and the toxic and harmful gases and thick smoke generated by the fire are difficult to be quickly discharged from the tunnel. The reduced visibility affects the orderly evacuation of passengers to a safe area; 4. The small space makes it difficult for large-scale fire-fighting equipment and firefighters to approach the fire scene, which brings great difficulties to fire fighting.

[0003] According to the requirements of GB50157 "Subway Design Code": Manual alarm buttons should be installed in underground section tunnels; and GB50116 "Fire Automatic Alarm Design Code": Linear fiber optic temperature-sensitive fire detectors should be installed in highway tunnels, railway tunnels with power cables, and urban subway tunnels. The fire detection and alarm methods in subway tunnels are: (1) Setting manual alarm buttons; (2) Setting manual alarm buttons + linear fiber optic temperature detectors, of which linear fiber optic temperature detectors include distributed fiber optic temperature detectors and fiber grating temperature detectors.

[0004] The traditional tunnel fire alarm method has the following problems: 1. Early fire alarms basically rely on train drivers to discover and report the fire, and the fire is manually confirmed by the fire control room. The degree of automation is low, delaying the best time for early fire rescue; 2. Linear fiber optic temperature detectors must alarm after the fire occurs and the ambient temperature reaches the alarm temperature specified by the detector before a fire alarm signal is issued. This is a delayed fire alarm method, and the fire has already developed to a certain extent at this time; 3. After the fire occurs, it is impossible to obtain real-time video footage at the fire alarm point, which brings inconvenience to fire rescue.

[0005] Therefore, in view of the great harm to human life and property caused by the above subway tunnel fires, as well as the emergence of unmanned driving mode in subways in recent years, it is urgent to propose relevant methods for extremely early detection, early warning and alarm of subway tunnel fires, and transmission of real-time video images on site. Summary of the invention

[0006] The purpose of the present invention is to provide a fire very early detection early warning alarm system and method to solve the problems of very early detection, early warning alarm, on-site real-time video image transmission, etc. of subway tunnel fire.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A fire early detection and warning alarm system, the system comprising a detector, an alarm monitoring module and an alarm controller, each of the detectors is connected to a group of alarm monitoring modules, and all the alarm monitoring modules are connected to the alarm controller; the detectors and the alarm monitoring modules are arranged in the tunnel, and the alarm controller is arranged in the fire control room;

[0009] The detector includes an infrared light sensor, an ultraviolet light sensor, an image sensor, a high-definition camera, an industrial-grade computing chip, a signal comparison unit, a signal relay and a terminal block; the infrared light sensor and the ultraviolet light sensor are both connected to the industrial-grade computing chip, and the high-definition camera is connected to the image sensor and then connected to the industrial-grade computing chip; the industrial-grade computing chip is connected to the signal comparison unit and sends the infrared light characteristic signal, the ultraviolet light characteristic signal and the image characteristic signal to the signal comparison unit, the signal comparison unit is connected to the signal relay and sends the signal of the comparison processing result to the signal relay, and the signal relay is connected to the terminal block and outputs the signal.

[0010] Furthermore, the detector also includes a signal amplifier, through which the signal of the infrared light sensor is sent to the industrial-grade computing chip, and through which the signal of the ultraviolet light sensor is sent to the industrial-grade computing chip.

[0011] Furthermore, the terminal block terminal includes a warning signal output terminal and an alarm signal output terminal, the signal relay is connected to the warning signal output terminal and outputs the warning signal, and the signal relay is connected to the alarm signal output terminal and outputs the alarm signal.

[0012] Furthermore, the terminal block further includes a fault signal output terminal, and the industrial-grade computing chip is connected to a fault signal relay, and then connected to the fault signal output terminal to output a fault signal.

[0013] Furthermore, the terminal block also includes a video signal output terminal, and the high-definition camera is connected to the video signal output terminal and outputs the video signal.

[0014] Furthermore, a group of the alarm monitoring modules connected to each of the detectors includes a first alarm monitoring module, a second alarm monitoring module, and a third alarm monitoring module;

[0015] The warning signal output terminal is connected to the first alarm monitoring module, and the warning signal is sent to the first alarm monitoring module and then to the alarm controller;

[0016] The alarm signal output terminal is connected to the second alarm monitoring module, and the alarm signal is sent to the second alarm monitoring module and then to the alarm controller;

[0017] The fault signal output terminal is connected to the third alarm monitoring module, and the fault signal is sent to the third alarm monitoring module and then to the alarm controller.

[0018] On the other hand, a fire early detection and warning alarm method based on the system is provided, the method comprising:

[0019] The infrared light sensor obtains the corresponding wavelength parameters of flame combustion and converts them into electrical signals, which are amplified by the signal amplifier and then input into the industrial-grade computing chip, which processes and outputs infrared light characteristic signals.

[0020] The corresponding wavelength parameters of flame combustion are obtained by the ultraviolet light sensor and converted into electrical signals, which are input into the industrial-grade computing chip after being amplified by the signal amplifier, and the ultraviolet light characteristic signals are output after being processed by the industrial-grade computing chip;

[0021] The high-definition camera collects on-site image data, filters and amplifies the data through the image sensor, and then inputs the data into the industrial-grade computing chip, which processes the data and outputs image feature signals;

[0022] The infrared light characteristic signal, the ultraviolet light characteristic signal, and the image characteristic signal are input into the signal comparison unit for logic calculation and comparison processing, and an early warning signal or an alarm signal is output;

[0023] The warning signal is sent to the first alarm monitoring module through the warning signal relay and the warning signal output terminal, and then sent to the alarm controller;

[0024] The alarm signal is sent to the second alarm monitoring module through the alarm signal relay and the alarm signal output terminal, and then sent to the alarm controller.

[0025] Furthermore, the signal comparison unit performs logic calculation and comparison processing, and outputs the warning signal including:

[0026] The infrared light characteristic signal, the ultraviolet light characteristic signal and the image characteristic signal are subjected to logical calculation and comparison processing by adopting OR logic. If any one of the characteristic signals is abnormal, an early warning signal is output.

[0027] Furthermore, the signal comparison unit performs logic calculation and comparison processing, and outputs an alarm signal including:

[0028] The infrared light characteristic signal, the ultraviolet light characteristic signal and the image characteristic signal are subjected to logical calculation and comparison processing by adopting AND logic and OR logic. If at least two characteristic signals are abnormal, an alarm signal is output.

[0029] Furthermore, the method further comprises:

[0030] When any device in the detector is abnormal, the industrial-grade computing chip outputs a fault signal;

[0031] The fault signal is sent to the third alarm monitoring module through the fault signal relay and the fault signal output terminal, and then sent to the alarm controller.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The image detection part of the present invention can identify early smoke, and can accurately capture early smoke-filled flames in conjunction with the detected weak signals of infrared and ultraviolet light. In the event of a deflagration fire, the image detection part is unable to distinguish the visible form of the flame during high-speed movement, which is similar to the fire-like form of the red taillights of a train, and is prone to false alarms. The identification of flame characteristics in conjunction with infrared and ultraviolet light detection can effectively avoid false fire alarms and greatly improve the alarm accuracy of fire detectors. This achieves the actual effect of "1+1>2" that cannot be achieved by superimposing single signal detectors.

[0034] 2. The present invention can assist fire duty personnel in confirming fire alarms, predicting fire conditions, and handling on-site emergencies by transmitting real-time video images of the scene back to the fire control room, thereby gaining more time for on-site emergency operations, timely evacuating passengers stranded in the tunnel and commanding fire rescue, and also greatly facilitating the investigation of the causes of subsequent fire accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0036] Figure 1 Schematic diagram of the front arrangement of the detector in the embodiment of the present invention.

[0037] Figure 2 It is a schematic diagram of the composition of the detector in an embodiment of the present invention.

[0038] Figure 3 It is a working principle diagram of the detector alarm in an embodiment of the present invention.

[0039] Figure 4 It is a working principle diagram of the detector early warning in an embodiment of the present invention.

[0040] Figure 5 It is a system configuration diagram in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0042] In the description of the present invention, the terms "including", "setting", etc. and any variations thereof are intended to cover non-exclusive inclusions, and are not necessarily limited to those devices clearly listed, but may include other devices that are not clearly listed or inherent to these processes and methods. Descriptions such as "access" and "integration" may include electrical connections, signal connections, etc., depending on the device properties of the two connected devices themselves. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance. Of course, such objects can be interchanged where appropriate so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0043] At present, there are two types of detectors that can realize very early fire alarm, which are suitable for very early fire alarm in subway tunnel environment:

[0044] (1) Flame detectors use sensors to generate sensitivity to a certain light wave spectrum of the flame. As long as there is a light wave spectrum that matches the spectrum, an alarm will be issued, which can achieve extremely early fire alarm.

[0045] (2) Image detectors use lenses to capture on-site images and use professional video image fire recognition algorithms to identify smoke or flame information in on-site images, and then issue an alarm, which can achieve extremely early fire alarms.

[0046] The initial stage of a fire in a tunnel is often accompanied by a large amount of smoke, which blocks infrared and ultraviolet light to a certain extent, affecting the alarm of point-type flame detectors. In addition, due to the influence of external environments such as welding arcs during maintenance and construction in the tunnel, arcing of pantographs during train start and stop, and lighting, using only a single infrared light band flame detector, a single ultraviolet light band flame detector, or a single image detector cannot effectively distinguish between real flames and interference signals, and is prone to false alarms. However, the light wave spectra of these interference factors have certain specificity, which is different from the multiple light wave spectra of flames that exist in infrared, visible light, and ultraviolet bands at the same time. Therefore, the integrated design of optical sensors in different infrared and ultraviolet bands and image sensors can effectively improve the response speed and alarm accuracy, improve the reliability of equipment operation, reduce false alarms caused by environmental factors, and have better consistency compared to separate unit sensors.

[0047] Embodiment 1:

[0048] This embodiment provides a fire early detection and warning alarm system, which includes a detector, an alarm monitoring module and an alarm controller, each detector is connected to a group of alarm monitoring modules, and all alarm monitoring modules are connected to the alarm controller. The detector and the alarm monitoring module are set in the tunnel, and the alarm controller is set in the fire control room.

[0049] like Figure 1 and Figure 2 The detector includes an infrared light sensor, an ultraviolet light sensor, an image sensor, a high-definition camera, an industrial-grade computing chip, a signal comparison unit, a signal relay, and a terminal block. The infrared light sensor and the ultraviolet light sensor are both connected to the industrial-grade computing chip, and the high-definition camera is connected to the image sensor and then to the industrial-grade computing chip. The industrial-grade computing chip is connected to the signal comparison unit and sends the infrared light characteristic signal, the ultraviolet light characteristic signal, and the image characteristic signal to the signal comparison unit. The signal comparison unit is connected to the signal relay and sends the signal of the comparison processing result to the signal relay, and the signal relay is connected to the terminal block and outputs the signal. In addition, the detector also includes a signal amplifier, and the signal of the infrared light sensor is sent to the industrial-grade computing chip through the signal amplifier, and the signal of the ultraviolet light sensor is sent to the industrial-grade computing chip through the signal amplifier.

[0050] The industrial-grade computing chip in this system can be TMS320F28377SPZPQ.

[0051] The terminal block includes a warning signal output terminal and an alarm signal output terminal. The signal relay is connected to the warning signal output terminal and outputs the warning signal. The signal relay is connected to the alarm signal output terminal and outputs the alarm signal. The terminal block also includes a fault signal output terminal. The industrial-grade computing chip is connected to the fault signal relay, and then connected to the fault signal output terminal and outputs the fault signal. The terminal block also includes a video signal output terminal. The high-definition camera is connected to the video signal output terminal and outputs the video signal.

[0052] like Figure 5 , a group of alarm monitoring modules connected to each detector includes a first alarm monitoring module, a second alarm monitoring module, and a third alarm monitoring module. The early warning signal output terminal is connected to the first alarm monitoring module, and the early warning signal is sent to the first alarm monitoring module, and then to the alarm controller; the alarm signal output terminal is connected to the second alarm monitoring module, and the alarm signal is sent to the second alarm monitoring module, and then to the alarm controller; the fault signal output terminal is connected to the third alarm monitoring module, and the fault signal is sent to the third alarm monitoring module, and then to the alarm controller.

[0053] like Figure 5 The system also includes a DC 24V fire power supply. Each detector is provided with a power input terminal, and the DC 24V fire power supply supplies power to the detector through the power input terminal of each detector.

[0054] like Figure 5 ,This system has arranged sound and light alarms, printers in the fire control room, and a duty officer workstation with display equipment.

[0055] In this system, the alarm monitoring module (model: NOTIFIER JSM-FMM-9G) is used for signal transmission between the alarm controller (model: NOTIFIER JB-TG-NFS23030) and the detector, converting the switch signal output by the detector into a communication signal with an address code and transmitting it to the alarm controller, which can accurately locate the fire. The alarm monitoring module has a unique communication address code, which corresponds to the communication address code set in the alarm controller. Any fire alarm monitoring module that outputs information to the fire alarm controller will have a corresponding predefined information meaning.

[0056] Embodiment 2:

[0057] This embodiment provides a method for extremely early detection and alarm of fire, the method comprising:

[0058] S1: The corresponding wavelength parameters of flame combustion are obtained through the infrared light sensor and converted into electrical signals. After amplification by the signal amplifier, they are input into the industrial-grade computing chip, which processes and outputs infrared light characteristic signals.

[0059] The infrared light sensor responds to infrared rays in the range of 2.5-4.6μm, but is insensitive to light in other spectrum ranges. It can be used to detect infrared light signals in flames and generate fire signals in response.

[0060] S2: The corresponding wavelength parameters of flame combustion are obtained through the ultraviolet light sensor and converted into electrical signals. After amplification by the signal amplifier, they are input into the industrial-grade computing chip. After processing by the industrial-grade computing chip, ultraviolet light characteristic signals are output. When there is no response, a non-fire signal is generated.

[0061] The UV sensor only responds to ultraviolet rays in the narrow range of 0.185-0.260μm generated by flame combustion, and is insensitive to light in other spectral ranges. It can be used to detect UV signals in flames, generating fire signals when responding and non-fire signals when not responding.

[0062] S3: The on-site image data is collected through a high-definition camera, filtered and amplified by the image sensor, and then input into the industrial-grade computing chip, which processes and outputs the image feature signal.

[0063] The industrial-grade computing chip uses the video image fire recognition algorithm to identify the smoke or flame information in the on-site image data and output the image feature signal. When the smoke or flame information is not identified, the image feature signal is a non-fire signal; when the smoke or flame information is identified, the image feature signal is a fire signal.

[0064] S4: The infrared light characteristic signal, ultraviolet light characteristic signal, and image characteristic signal are input to the signal comparison unit for logic calculation and comparison processing, and an early warning signal or an alarm signal is output. Specifically:

[0065] S401: Figure 4 , using OR logic, perform logical calculation and comparison processing on infrared light characteristic signals, ultraviolet light characteristic signals, and image characteristic signals. If any characteristic signal is abnormal, an early warning signal is output. Any characteristic signal abnormal means that any characteristic signal is a fire signal.

[0066] S402: Figure 3 , using AND logic and OR logic, the infrared light characteristic signal, ultraviolet light characteristic signal, and image characteristic signal are logically calculated and compared. If at least two characteristic signals are abnormal, an alarm signal is output. At least two characteristic signals are abnormal, which means that two characteristic signals are fire signals at the same time.

[0067] S5: The warning signal is sent to the first alarm monitoring module through the warning signal relay and the warning signal output terminal, and then to the alarm controller; the alarm signal is sent to the second alarm monitoring module through the alarm signal relay and the alarm signal output terminal, and then to the alarm controller. In the fire control room, the sound and light alarm emits sound and light alarms to prompt the fire duty officer to take the next action.

[0068] Regardless of whether a warning signal or an alarm signal is output, the high-definition camera can output the video signal through the video signal output terminal, and send the video image information of the scene to the duty officer's workstation for display, so as to help the fire duty officer to judge the fire situation on the scene.

[0069] Additionally, the method includes:

[0070] S6: When any device in the detector is abnormal, the industrial-grade computing chip outputs a fault signal; the fault signal is sent to the third alarm monitoring module through the fault signal relay and the fault signal output terminal, and then sent to the alarm controller. Any device abnormality refers to power failure, no signal output, output delay greater than the specified time, mirror contamination, and drastic signal amplitude fluctuations.

[0071] When there is an early warning signal output, the switch signal output by the detector is converted into a communication signal with address coding through the alarm monitoring modules MK11 and MKn1, and transmitted to the alarm controller. There will be a fire warning pop-up window prompt at the duty officer's workstation, but no alarm will be issued. It only reminds the fire duty officer to pay attention to the abnormality in the area where the early warning signal is issued. At the same time, the detector transmits the video image of the scene to the duty officer's workstation for display through the high-definition camera to help the fire duty officer make manual judgments on the situation on site.

[0072] When an alarm signal is output, the switch signal output by the detector is converted into a communication signal with address coding through the alarm monitoring modules MK12 and MKn2, and transmitted to the alarm controller. A fire alarm pop-up window will appear at the duty officer's workstation, and the alarm controller will link the sound and light alarm to issue sound and light alarms to remind the fire duty officer that a fire has occurred. At the same time, the detector transmits the video image of the scene to the duty officer's workstation for display through a high-definition camera to help the fire duty officer understand and control the fire situation on site.

[0073] When a fault signal is output, the switch signal output by the detector is converted into a communication signal with address coding through the alarm monitoring modules MK13 and MKn3, and transmitted to the alarm controller. A fault pop-up window will appear at the duty officer's workstation, prompting the fire duty officer to repair the detector.

[0074] The present invention realizes the early detection and early warning of fire in the tunnel, realizes the automatic detection of early fire, sends out the early warning alarm signal in time, and takes fire-fighting actions before the fire develops into a disaster. In one detector, the infrared light, ultraviolet light, and flame image characteristics of the fire are detected, which improves the anti-interference ability of traditional point-type flame detectors and image fire detectors and reduces the false alarm rate. In addition, the system can provide video images of the on-site alarm point while outputting the early warning alarm signal, so as to intuitively understand the situation at the fire scene and assist the fire duty officer in remote fire determination.

[0075] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A fire early detection and warning alarm method, characterized in that: The method is implemented based on a fire early detection and warning alarm system, which includes a detector, an alarm monitoring module and an alarm controller. Each detector is connected to a group of alarm monitoring modules, and all alarm monitoring modules are connected to the alarm controller. The detector and the alarm monitoring module are arranged in the tunnel, and the alarm controller is arranged in the fire control room. The detector includes an infrared light sensor, an ultraviolet light sensor, an image sensor, a high-definition camera, an industrial-grade computing chip, a signal comparison unit, a signal relay and a terminal block; the infrared light sensor and the ultraviolet light sensor are both connected to the industrial-grade computing chip, and the high-definition camera is connected to the image sensor and then connected to the industrial-grade computing chip; the industrial-grade computing chip is connected to the signal comparison unit and sends the infrared light characteristic signal, the ultraviolet light characteristic signal and the image characteristic signal to the signal comparison unit, the signal comparison unit is connected to the signal relay and sends the signal of the comparison processing result to the signal relay, and the signal relay is connected to the terminal block and outputs the signal; The method comprises: The infrared light sensor obtains the corresponding wavelength parameters of flame combustion and converts them into electrical signals, which are amplified by the signal amplifier and input into the industrial-grade computing chip, and then processed by the industrial-grade computing chip to output infrared light characteristic signals; the infrared light sensor responds to infrared rays within the wavelength range of 2.5-4.6 μm; The corresponding wavelength parameters of flame combustion are obtained by the ultraviolet light sensor and converted into electrical signals, which are input into the industrial-grade computing chip after being amplified by the signal amplifier, and output ultraviolet light characteristic signals after being processed by the industrial-grade computing chip; the ultraviolet light sensor responds to ultraviolet rays within the wavelength range of 0.185-0.260 μm; The high-definition camera collects on-site image data, which is filtered and amplified by the image sensor and then input into the industrial-grade computing chip, which processes and outputs an image feature signal; the industrial-grade computing chip identifies smoke or flame information in the on-site image data through a video image fire recognition algorithm and outputs an image feature signal; when smoke or flame information is not identified, the image feature signal is a non-fire signal; when smoke or flame information is identified, the image feature signal is a fire signal; The infrared light characteristic signal, the ultraviolet light characteristic signal, and the image characteristic signal are input into the signal comparison unit for logic calculation and comparison processing, and an early warning signal or an alarm signal is output; The warning signal is sent to the first alarm monitoring module through the warning signal relay and the warning signal output terminal, and then sent to the alarm controller; The alarm signal is sent to the second alarm monitoring module through the alarm signal relay and the alarm signal output terminal, and then sent to the alarm controller; The signal comparison unit performs logic calculation and comparison processing, and outputs a warning signal including: Using OR logic, logical calculation and comparison processing are performed on the infrared light characteristic signal, the ultraviolet light characteristic signal, and the image characteristic signal. If any one of the characteristic signals is abnormal, an early warning signal is output; The signal comparison unit performs logic calculation and comparison processing, and outputs an alarm signal including: Using AND logic and OR logic, logical calculation and comparison processing are performed on the infrared light characteristic signal, the ultraviolet light characteristic signal, and the image characteristic signal. If at least two characteristic signals are abnormal, an alarm signal is output; The alarm monitoring module is used for signal transmission between the alarm controller and the detector. It converts the switch signal output by the detector into a communication signal with an address code and transmits it to the alarm controller for fire location.

2. The method according to claim 1, characterized in that: The method further comprises: When any device in the detector is abnormal, the industrial-grade computing chip outputs a fault signal; The fault signal is sent to the third alarm monitoring module through the fault signal relay and the fault signal output terminal, and then sent to the alarm controller.

3. The method according to claim 1, characterized in that: The detector further includes a signal amplifier, through which the signal of the infrared light sensor is sent to the industrial-grade computing chip, and through which the signal of the ultraviolet light sensor is sent to the industrial-grade computing chip.

4. The method according to claim 3, characterized in that: The terminal block terminal includes a warning signal output terminal and an alarm signal output terminal. The signal relay is connected to the warning signal output terminal and outputs the warning signal. The signal relay is connected to the alarm signal output terminal and outputs the alarm signal.

5. The method according to claim 4, characterized in that: The terminal block further includes a fault signal output terminal, and the industrial-grade computing chip is connected to a fault signal relay, and further connected to the fault signal output terminal to output a fault signal.

6. The method according to claim 5, characterized in that: The terminal block also includes a video signal output terminal, and the high-definition camera is connected to the video signal output terminal and outputs the video signal.

7. The method according to claim 6, characterized in that: A group of the alarm monitoring modules connected to each of the detectors includes a first alarm monitoring module, a second alarm monitoring module, and a third alarm monitoring module; The warning signal output terminal is connected to the first alarm monitoring module, and the warning signal is sent to the first alarm monitoring module and then to the alarm controller; The alarm signal output terminal is connected to the second alarm monitoring module, and the alarm signal is sent to the second alarm monitoring module and then to the alarm controller; The fault signal output terminal is connected to the third alarm monitoring module, and the fault signal is sent to the third alarm monitoring module and then to the alarm controller.

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